diff --git a/src/txmempool.h b/src/txmempool.h
--- a/src/txmempool.h
+++ b/src/txmempool.h
@@ -118,11 +118,6 @@
 
     const CTransaction &GetTx() const { return *this->tx; }
     CTransactionRef GetSharedTx() const { return this->tx; }
-    /**
-     * Fast calculation of lower bound of current priority as update from entry
-     * priority. Only inputs that were originally in-chain will age.
-     */
-    double GetPriority(unsigned int currentHeight) const;
     const Amount GetFee() const { return nFee; }
     size_t GetTxSize() const { return nTxSize; }
 
diff --git a/src/txmempool.cpp b/src/txmempool.cpp
--- a/src/txmempool.cpp
+++ b/src/txmempool.cpp
@@ -53,18 +53,6 @@
     nSigOpCountWithAncestors = sigOpCount;
 }
 
-double CTxMemPoolEntry::GetPriority(unsigned int currentHeight) const {
-    double deltaPriority =
-        double((currentHeight - entryHeight) * (inChainInputValue / SATOSHI)) /
-        nModSize;
-    double dResult = entryPriority + deltaPriority;
-    // This should only happen if it was called with a height below entry height
-    if (dResult < 0) {
-        dResult = 0;
-    }
-    return dResult;
-}
-
 void CTxMemPoolEntry::UpdateFeeDelta(Amount newFeeDelta) {
     nModFeesWithDescendants += newFeeDelta - feeDelta;
     nModFeesWithAncestors += newFeeDelta - feeDelta;